Home / 13,492.89-18,613.84-8,775.45

Finding the Fourth Proportional to 13,492.89, 18,613.84 and 8,775.45

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Solution

The fourth proportional to 13,492.89, 18,613.84 and 8,775.45 is: 12,105.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,492.89 : 18,613.84 = 8,775.45 : x
  2. Step 2: Convert to fraction form
    13,492.89/18,613.84 = 8,775.45/x
  3. Step 3: Cross multiply
    13,492.89x = 18,613.84 × 8,775.45
  4. Step 4: Simplify right side
    13,492.89x = 163,344,868.76
  5. Step 5: Solve for x
    x = 163,344,868.76/13,492.89
  6. Step 6: Final answer
    x = 12,105.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.